Department of Energy Loan Facility and Warrant Obligations - Summary of Initial Recognition of Loan (Details) - USD ($) $ in Thousands |
2 Months Ended | 6 Months Ended | 9 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 03, 2026 |
Feb. 24, 2026 |
Dec. 31, 2025 |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Line of Credit Facility [Line Items] | |||||||||||
| Deferred interest cost | $ 5,522 | $ 12,978 | |||||||||
| DOE loan [Member] | |||||||||||
| Line of Credit Facility [Line Items] | |||||||||||
| Initial recognition on Begining Balance | $ 435,000 | [1] | 438,761 | ||||||||
| Initial recognition, debt issuance costs | (88,362) | [1] | (87,774) | ||||||||
| Additional advances | $ 342,000 | $ 432,000 | 774,000 | [2] | |||||||
| Additional advance, debt issuance costs | [2] | (157,224) | |||||||||
| Deferred interest cost | 3,761 | 17,390 | |||||||||
| Amortization of debt issuance costs | 588 | 2,865 | |||||||||
| Balance, debt issuance costs | (87,774) | (242,133) | (87,774) | ||||||||
| Ending Balance | 438,761 | 1,230,151 | 438,761 | ||||||||
| Loans Outstanding Net [Member] | |||||||||||
| Line of Credit Facility [Line Items] | |||||||||||
| Initial recognition on Begining Balance | 346,638 | [1] | 350,987 | ||||||||
| Additional advances | [2] | 616,776 | |||||||||
| Deferred interest cost | 3,761 | 17,390 | |||||||||
| Amortization of debt issuance costs | 588 | 2,865 | |||||||||
| Ending Balance | $ 350,987 | $ 988,018 | $ 350,987 | ||||||||
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